Gaseous fuel



UNITED STATES PATENT OFFICE.

JAMES R. ROSE, OF EDGEWORTH, PENNSYLVANIA,

AND JOHN HARRIS, OF LAKEWOOD,

A CORPORATION OF DELAWARE.

' oasnous FUEL.

No Drawing.

T all whom it may concern:

Be it known that we, (1) JAMES R. Ross, (2) JOHN HARRIS, citizens of theUnited States, residing at (1) Edgeworth, (2)

5 Lakewood, in the county of (1) Alle heny,

(2) Cuyahoga, and State of (1) ennsylvania, (2) Ohio, have invented acertain new and useful Improvement in Gaseous Fuel, of which thefollowing is a full, clear,

and exact description.

This invention relates to gaseous fuel, and more particularly to a fuelwhich is especially adapted for the urpose of cutting metals with greatrapi ity, where extreme eleanness of cutting is not essential. A use forwhich our gas is particularly well suited is for the cutting of scrapiron.

\Ve obtain a gas having'the above desireable characteristics by mixingwith hydrogen, as a combustible base, propane and carbon monoxide in theproportions of from 2% to 121}% by volume each of such propane andcarbon monoxide to the hydrogen constituent. The carbon monoxide servesto increase slightly the temperature produced by the combustion ofhydrogen alone. Furthermore, the gaseous mixture produces within theburning hydrogen a visible cone which enables the operator to adjust thepro portions of the gases and the combustionsupporting oxygen as may benecessary and to apply the flame in the most advantageous manner to thework. Both the volume of the flame and the heat units produced by thecombustion of the mixture are greater than are produced by thecombustion of hydrogen alone, butare lower than usually required foroperating on heavy masses of metal and for cutting cast iron and steel40 and corroded, dirty and slaggy iron and steel.

Specification of Letters Patent.

However, our gaseous mixture is Patented Jan. 24, 1922.

Application filed December 26, 1919. Serial No. 347,452.

capable of cutting with much greater rapidity than can be accomplishedby gases having such higher carbon content.

According to Richards on Metallurgical Calculations, published in 1908,the flame temperature produced by the combustion of the aforesaid gases.will be above 3200 0., and the variations in the percentages of the saidgases will cause approximately the following variations in the not B. T.U. per cubic foot of mixture and in the cubic feet of oxygen requiredfor the combustion of a cubic foot of such mixture:

No. 1 mixture, 95% H. with 2%% each of propane and carbon monoxide; netB. T. U. is 348; cu. ft. of'oxy ch .613.

No. 2 mixture, 75% with 123 70 each of propane and carbon monoxide; netB. T. U. s 567; cu. ft. of ox gen 1.125.

Having thus descri ed our invention, what we claim is:

1. A gas for cutting, welding and heating purposes consisting of amixture of carbon' monox1de and propane with hydrogen in the proportionsof from' 21;% to 12%% by volume each of carbon monoxide and propane tohydrogen.

2. A gas for cutting, welding and heating purposes consisting of amixture of propane and carbon monoxide with hydrogen in proportions notsubstantially less than 5% by volume of such combined gases to thehydrogen and not materially more than 25% of such combined gases to thehydrogen, the propane and carbon monoxide being present 1n theproportions of at least 2&7}; each in such mixture.

In testimony whereof, we hereunto aifix our signatures.

JAMES R. ROSE. JOHN HARRIS.

